Instance: Hall of Lightning (Heroic)
Box: Protecting Pally (Zhazia), x3 Arcane Mages (Zhant, Zhaje, Zhase), x1 Disc/Holy Priest (Zhaze) [Realm Warsong]
Gear level: 80 Blues, Some Epics from Heroics / Badges
Difficulty: Medium once speced and geared right
Guide:

Assumptions:

- Mages always cast mirror image
- Priest nukes when heals not needed
- Glyphed Holy Nova as main staple AoE heal with Prayer of Mending
- Mixed disc/Holy spec to maximize mana., plus int gems, enchants, etc to push mana total (not best raid healer spec by far).
- Mana pots whenever needed on healer
- Surge of light nuke (insta cast smite) when available or flash heal
- Mages have full dmg reduction talents including the resist talent, priest has reduced spell dmg talents which both help a lot and is noticable

First Boss (general guy)
Difficulty: EZ
Estimated kill time: 1:23

- Must let the lightning drop off them before starting
- Spread out the casters, pally tanks all 3 (boss and adds). Burn down the two adds then boss. Priest mostly nukes

Second Boss (big golem guy)
Difficulty: Super EZ
Estimated kill time: 0:45

- Pull and nuke non stop, ignore golem adds and just get agro with pally abilities if possible (they switch I think)
- Before he stomps spam Holy Nova as needed and surge of light insta nukes from priest

Third Boss (Lightning guy)
Difficulty: Medium
Estimated kill time: 2ish minutes?

- Spread out all guys in different corners with backs against walls or piller (think he pushes back)
- Tank in middle (kinda like a 5 star config)
- When he splits and they go after tank run forward with renew on tank, Prayer of Mending bouncing around
- Flash heal, Power word, and renews on whoever has the add sparks attacking (I don't move them)

Final Boss (Nova guy)
Difficulty: EZ (used to be hard, see comments)
Estimated kill time: 1ish minute

This guy used to be hard and caused huge repair bill. Figured out ez method
- Get at least 16khps buffed on all characters with spell dmg reducing talents (may need more depending on class)
- Guys on follow, stack up everyone in front when tanking
- dps hard as possible
- Spot heal, but when you see nova casting MAKE SURE everyone is full health
- Like to toss bubble on lowest health person (priest) before the nova as extra insurance, put Hand of Sacrifice on sometimes (30% DMG redirect to tank)
- Basically, when he starts casting spam HOLY NOVA till everyones full then have a free surge of light by then (insta flash heal) for lowest health person,
- Continue to spam holy nova till end of fight while mages are nuking, have TONs of mana with disc talent that bubbles and gives mana back and can pretty much holy nova entire fight once he starts the aoe dmg.